<a href="{:url('demo/jikexueyuan/courses','course='.$course_title)}" class="btn btn-link back">返回</a>
<div class="list-group">
    {foreach name="videos" item="vid" key="k" }
    <a href="{:url('demo/jikexueyuan/video','course='.$course_title.'&cid='.$course_id.'&vid='.$vid['vid'])}" class="list-group-item link">{$vid['title']}</a>
    {/foreach}
</div>